pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5558-Chalumeau.ps) >>/Users/jc/w/tmp/Tune-5558-get.log 2>&1" returned status 256
http://www.campin.me.uk/Music/Chalumeau.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_55585.log 139254 Log file, useful mostly for debugging
Form_55580.log 934 Log file, useful mostly for debugging
Form_55583.log 898 Log file, useful mostly for debugging
Tune-5558-Chalumeau.abc 0 ABC music file with the extracted tune(s)
Tune-5558-Chalumeau.ps 0 PostScript
Tune-5558-get.log 0 Log file, useful mostly for debugging
These files should be available for 24 hours.